Prove that: `(sectheta-1)/(sectheta+1)=((sintheta)/(1+costheta))^2`

Prove: (1+sectheta)/(sectheta)=(sin^2theta)/(1-costheta)

Prove that- (sectheta+tantheta)/(sec-tantheta)=((1+sintheta)/costheta)^2

Prove that: (i) (costheta)/(1-sintheta)=(1+sintheta)/(costheta) (ii) (1+costheta-sin^(2)theta)/(sintheta+sinthetacostheta)=cottheta (iii) 1+(tan^(2)theta)/(1+sectheta)=sectheta

Prove that: sqrt((sectheta-1)/(sectheta+1))+sqrt((sectheta+1)/(sectheta-1))=2\ cos e c\ theta

Prove that sqrt((sectheta-1)/(sectheta+1))+sqrt((sectheta+1)/(sectheta-1))=2cosectheta

prove (tantheta +sectheta-1)/(tantheta-sectheta+1) = (1+sintheta)/(costheta)

Prove the following (1 + sectheta) /(sectheta )=(sin^2theta) /(1-costheta)

Prove that : (sectheta-tantheta)^(2)=(1-sintheta)/(1+sintheta)

Prove that : (sectheta-tantheta)^(2)=(1-sintheta)/(1+sintheta)

Prove that : sqrt((sectheta-1)/(sectheta+1))+sqrt((sectheta+1)/(sectheta-1))=2cosectheta